# List of third-party Micro Channel computers

This is a list of computer systems based on the Micro Channel architecture that were not manufactured by IBM. Such third-party computers were also referred to as PS/2 clones or MCA clones. The first third-party Micro Channel–based computer was Tandy Corporation's 5000 MC in July 1988. Despite expensive research and development costs on the part of third-party manufacturers of Micro Channel computers—in part due to the expensive licensing fees incurred by IBM in order to allow legal use of their technology—by 1990 most MCA clones were not fully compatible with the Micro Channel architecture or expansion cards and peripherals based on Micro Channel. By the time IBM was winding down the PS/2 line of personal computers (which in 1987 acted as the means of introducing Micro Channel to the general public) in 1992, NCR Corporation remained one of the few committed vendors of MCA clones.

## Systems

| Mfg. | Model | Processor | Clock speed (MHz) | L2 cache (KB) | HDD | Stock/min. memory | Max. memory (MB) | Form factor | Date introduced | Ref(s). |
| ALR | PowerPro/MC | Intel 80486 | 33 | 64–512 (CachePak boards) | — | 5 | 49 | Tower | January 1991 | |
| ALR | PowerPro/MC SMP/DMP | Intel 80486 or Intel 80486DX2 (optionally dual) | 33 (i486) 50 (i486DX) | 64–512 (CachePak boards) | — | 5 | 49 | Tower | January 1992 | |
| ALR | PowerCache 4 | Intel 80486 | 25 | 128 | 150 MB or 340 MB (SCSI) | 2 | 32 | Tower or desktop | July 1990 (c.) | |
| ALR | Modular Processor System (a.k.a. MPS) | Intel 80386 or Intel 80486 | 25 (i486) or 33 (i386 and i486) | 64–512 | — (non-SCSI) | 1 | 49 | Desktop | November 1990 | |
| ALR | Modular Processor System 486ASX (a.k.a. MPS II) | Intel 80486SX | 20 | 64–512 | None (Model 80) or 80 MB (Model 101) | 1 | 49 | Desktop | April 1991 | |
| ALR | MicroFlex 3300 | Intel 80386 | 33 | 32–64 | 70 MB or 120 MB or 642 MB | 2 | 64 | Tower | October 1990 | |
| ALR | MicroFlex 7000 | Intel 80386 | 25 | 128 | 120 MB or 300 MB (ESDI) | 2 | 16 | Tower | January 1989 | |
| Apricot | Qi 300 | Intel 80386SX | 16 | None | 30 MB (RLL) or 50 MB (SCSI) or 120 MB | 2 | 8 | Desktop | February 1989 | $^{:122}$ |
| Apricot | Qi 600 (a.k.a. Qi PCi) | Intel 80386 | 25 | 64 | 50 MB (RLL) – 510 MB (SCSI) | 1 | 16 | Desktop | February 1989 | |
| Apricot | Qi 900 | Intel 80486 | 25 | 64 | 50 MB or 80 MB or 100 MB or 380 MB | 1 | 16 | Desktop | April 1990 | |
| Apricot | Qi 486SX-16 | Intel 80486SX | 25 | 128 | 50 MB (RLL) – 510 MB (SCSI) | 1 | 16 | Desktop | May 1992 | |
| Apricot | Qi 486DX-25 | Intel 80486 | 25 | 128 | 50 MB (RLL) – 510 MB (SCSI) | 1 | 16 | Desktop | April 1991 (c.) | |
| Apricot | Qi 486DX-33 | Intel 80486 | 33 | 128 | 50 MB (RLL) – 510 MB (SCSI) | 1 | 16 | Desktop | May 1992 | |
| Apricot | Qi 486DX2-50 | Intel 80486DX2 | 50 | 128 | 50 MB (RLL) – 510 MB (SCSI) | 1 | 16 | Desktop | May 1992 | |
| Apricot | Qi 486DX2-66 | Intel 80486DX2 | 66 | 128 | 50 MB (RLL) – 510 MB (SCSI) | 1 | 16 | Desktop | May 1992 | |
| Apricot | VX FT | Intel 80386 or Intel 80486 | 25 | 64 or 128 | 157 MB or 347 MB or 647 MB or 1.05 GB | 4 | 16 | Tower | September 1989 | |
| Apricot | FTs (a.k.a. FT Mk II) | Intel 80486SX or Intel 80486 or Intel 80486DX2 (optionally dual) | 25 (i486SX) or 33 (i486) or 50 or 66 (i486DX2) | — | 50 MB or 100 MB or 200 MB or 380 MB or 510 MB or 1.2 GB | 1 | 16 | Tower | June 1991 | |
| Apricot | FTe | Intel 80486SX or Intel 80486 or Intel 80486DX2 | 25 (i486SX or i486) or 33 (i486) or 50 or 66 (i486DX2) | None | 50 MB or 100 MB or 200 MB or 380 MB or 510 MB or 1.2 GB | 1 | 16 | Full-tower | July 1991 | |
| Apricot | FT//s | Intel 80486DX2 or Intel Pentium | 66 (i486DX2) or 60 (Pentium) | — | Various | 192 (i486DX2) or 256 (Pentium) | 192 (i486DX2) or 256 (Pentium) | Tower | June 1993 | |
| Apricot | FT//e | Intel 80486DX2 or Intel Pentium | 66 (i486DX2) or 60 (Pentium) | — | Various | 192 (i486DX2) or 256 (Pentium) | 192 (i486DX2) or 256 (Pentium) | Full-tower | June 1993 | |
| Bull | Micral 500 | Intel 80386 | 20 | — | 200 MB | — | — | Desktop | October 1989 (c.) | |
| Cumulus | GL Computer/MC 386SX | Intel 80386SX | 25 | — | 80 MB | 2 | — | Desktop | July 1992 | |
| Cumulus | GL Computer/MC 486 | Intel 80486 | 33 | — | 200 MB | 4 | — | Desktop | July 1992 | |
| First Class Systems | 325i | Intel 80386 | 25 | — | 40 MB | 2 | 16 | Desktop | April 1990 | |
| First Class Systems | F16/SX | Intel 80386SX | 16 | — | 40 MB | 1 | 8 | Desktop | November 1989 | |
| First Class Systems | F20/DX | Intel 80386 | 20 | — | 40 MB | 2 | 16 | Desktop | November 1989 | |
| Grid | Desk 386mc | Intel 80386 | 20 | — | — | 2 | 16 | Desktop | April 1989 (c.) | |
| Leading Edge | Model D3/MC | Intel 80386SX | 16 | — | — | 1 | 4 | Desktop | April 1990 | |
| Memorex | Telex Model 7255 | Intel 80386 | 16 | — | — | 4 | 8 | Desktop | February 1990 | |
| Memorex | Telex Model 7270 | Intel 80386 | 25 | 32 | — | 4 | 8 | Desktop | June 1990 | |
| Memorex | Telex Model 8257 | Intel 80386SX | 20 | — | — | — | — | — | February 1992 | |
| Memorex | Telex Model 8290 | i486|Intel 80486 | 33 | — | — | — | — | — | February 1992 | |
| Memorex | Telex Model 9290 | Intel 80486DX2 | 50 | — | — | — | 64 | Desktop | November 1992 (c.) | |
| MiTAC | MPS-3000F | Intel 80386 | 25 | 32 | — | 1 | 24 | Desktop | January 1990 | |
| MiTAC | MPS-2386 | Intel 80386SX | 16 | — | 40 MB or 100 MB | 1 | 24 | Desktop | March 1989 (c.) | $^{:99–101}$ |
| NCR | System 3320 | Intel 80386SX | 20 | — | 44 MB or 100 MB | 2 | 8 | Desktop | 1990 | |
| NCR | System 3325 | Intel 80486SX (-2XXX-...) Intel 80486DX (-3XXX-...) Intel 80486DX2 (-4XXX-...) Intel 80486DX4 (-7XXX-...) | 33 (i486SX/DX) 66 (i486DX2) 100 (i486DX4) | — | — | 0 | 16 (i486SX) or 128 | Small form factor desktop | 1990 | |
| NCR | System 3335 | Intel 80486SX | 25 | 1 | 16 | 0 | 128 | Small form factor desktop | November 1991 | |
| NCR | System 3340 | Intel 80486 | 25 | — | 100 MB or 200 MB | 2 | 16 | Desktop | 1990 | |
| NCR | System 3345 | Intel 80486 | 33 | — | 100 MB or 200 MB or 340 MB | 4 | 64 | Desktop | 1990 | |
| NCR | System 3350 | Intel 80486SX or Intel 80486DX2 | 25 or 33 (i486SX) 66 (i486DX2) | — | 120 MB or 213 MB or 340 MB or 535 MB or 1.05 GB | 4 | 192 | Desktop | 1990 | |
| NCR | System 3360 | Intel Pentium (optionally dual) | 60 | — | — | 0 | 512 (parity-based) 256 (EDAC-based) | Tower | 1990 | |
| NCR | System 3410 | Intel 80486SX or Intel 80486DX2 | 33 (i486SX) 66 (i486DX2) | — | 213 MB or 340 MB or 535 MB or 1.05 GB | 4 | 192 | Tower | 1990 | |
| NCR | System 3416 | Intel Pentium (optionally dual) | 60 | — | — | 0 | 256 (EDAC-based, -1000 and -1002 models) 512 (parity-based, -1010 model) | Tower | 1990 | |
| NCR | System 3430 | Intel Pentium (optionally dual) | 60 | 256 | — | 0 | 256 (EDAC-based, -1000 and -1002 models) 512 (parity-based, -1010 model) | Tower | 1990 | |
| NCR | System 3445 | Intel 80486 | 33 | — | None or 200 MB or 327 MB or 670 MB | 4 | 16 | Tower | 1990 | |
| NCR | System 3550 | Intel 80486DX2 (up to 8 identical processors) | 50 | 256 (external; 8 KB internally per processor) | 320 MB – 13 GB | 16 | 256 | Tower | 1990 | |
| Research Machines | Nimbus PC-286 | Intel 80286 | 10 | — | 40 MB or 60 MB or 120 MB | 1 | 16 | Desktop | April 1989 | |
| Research Machines | Nimbus PC-386 | Intel 80386 | 16 | — | 40 MB or 60 MB or 120 MB | 1 | 16 | Desktop | April 1989 | |
| Olivetti | P500 | Intel 80386 | 16 | — | 40 MB or 80 MB or 135 MB (ESDI) | 1 | 16 | Desktop | July 1989 | |
| Olivetti | P700 | Intel 80386 | 25 | 32 | — | 1 | 24 | Desktop | July 1991 | |
| Olivetti | P750 | Intel 80486 | 25 | — | 100 MB or 200 MB | 2 | 32 | Desktop | August 1990 | |
| Olivetti | P800 | Intel 80386 | 25 | 64 | 135 MB | 4 | 16 | Tower | July 1989 | |
| Olivetti | M300-25 (a.k.a. P500/E) | Intel 80386SX | 20 | — | 60 MB | 2 | 16 | Desktop | — | |
| Olivetti | M480-30 | Intel 80486 | 25 | — | 210 MB or 270 MB or 340 MB or 510 MB or 525 MB | 4 | 32 | Desktop | — | |
| Olivetti | M480-40 | Intel 80486 | 33 | — | 210 MB or 340 MB or 525 MB | 4 | 32 | Desktop | — | |
| Olivetti | M480-50 | Intel 80486DX2 | 50 | — | — | — | 64 | Desktop | July 1993 (c.) | |
| Olivetti | M480-60 | Intel 80486 | 50 | — | 210 MB or 340 MB or 525 MB | 8 | 16 | Tower | — | |
| Olivetti | M6-520 | Intel 80486SX or Pentium OverDrive | 25 | Optional | 120 MB or 210 MB or 525 MB or 1.05 GB | 8 | 64 | Desktop | — | |
| Olivetti | M6-540 | Intel 80486 or Pentium OverDrive | 33 | Optional | 120 MB or 210 MB or 525 MB or 1.05 GB | 8 | 64 | Desktop | — | |
| Olivetti | M6-560 | Intel 80486DX2 or Pentium OverDrive | 66 | Optional | 120 MB or 210 MB or 525 MB or 1.05 GB | 8 | 64 | Desktop | — | |
| Reply | 286/16 | Intel 80286 | 16 | 0 | 30 MB or 60 MB or 120 MB (EDSI) | 2 | 8 | Desktop | November 1989 | |
| Reply | 286/20 | Intel 80286 | 20 | 0 | 30 MB or 60 MB or 120 MB (EDSI) | 2 | 8 | Desktop | November 1989 | |
| Reply | 386SX/16 | Intel 80386SX | 16 | 0 | 30 MB or 60 MB or 120 MB (EDSI) | 2 | 8 | Desktop | March 1990 | |
| Reply | 386SX/20 | Intel 80386SX | 20 | 0 | 30 MB or 60 MB or 120 MB (EDSI) | 2 | 16 | Desktop | March 1990 | |
| Reply | Model 16 | Intel 80286 or Intel 80386SX | 16 or 20 | 0 | 30 MB or 60 MB or 120 MB or 325 MB (EDSI) | 8 | 8 | Small form factor desktop | March 1990 | |
| Reply | Model 16 386SLC | IBM 386SLC | 20 | 0 | 120 MB | 4 | 8 | Small form factor desktop | August 1992 | |
| Reply | Model 16 486SLC2 | IBM 486SLC2 | 40 | 0 | 120 MB | 4 | 16 | Small form factor desktop | December 1992 | |
| Reply | Model 32 | Intel 80386 or Intel 80486SX or Intel 80486 | 25–33 (386) or 20 (486SX) or 25–50 (486DX) | 64 (386DX at 25 MHz) or 128 (386DX at 33 MHz) | 40 MB – 1.2 GB (EDSI) | 4–16 | 32 (64 with adapter) | Small form factor desktop | November 1990 | |
| SNI | PCM-3Dsx | Intel 80386 | 16 (386) | 0 | 40 MB – 160 MB (EDSI) | 4 | 16 | Small form factor desktop | November 1990 | |
| Tandy | 5000 MC | Intel 80386 | 20 | — | 40 MB (ST-506) or 84 MB | 2 | 16 | Desktop | July 1988 | |
| Wang | MC 350/16S | Intel 80386 | 16 | — | 20 MB or 40 MB or 100 MB | 2 | 8 | Desktop | September 1989 | |
| WLT Systems | PC Express MC-316S-5 | Intel 80386SX | 16 | — | — | 2 | 8 | Desktop | March 1990 | |